node.js - 亚马逊 SNS 中的徽章计数选项

Question

我需要在我的应用程序中获取徽章计数。我正在使用亚马逊 SNS 服务。这是我的代码

AWS.config.update({
  accessKeyId: 'XXXXXXX',
  secretAccessKey: 'XXXXXXX'
})
AWS.config.update({ region: 'XXXXXXX' })
const sns = new AWS.SNS()
const params = {
  PlatformApplicationArn: 'XXXXXXX',
  Token: deviceToken
}
sns.createPlatformEndpoint(params, (err, EndPointResult) => {
  const client_arn = EndPointResult["EndpointArn"];
    sns.publish({
      TargetArn: client_arn,
      Message: message,
      Subject: title,
      // badge: 1
    }, (err, data) => {
    })
  })

我需要知道在哪里可以添加 badge 选项？

谢谢!!!

Answer 1

我们可以向 AWS SNS 发送 json 消息以向应用端点发送推送通知。这使我们能够发送平台(APNS、FCM 等)特定字段和自定义项。

APNS 的示例 json 消息是，

{
"aps": {
    "alert": {
        "body": "The text of the alert message"
    },
    "badge": 1,
    "sound": "default"
 }
}

这是您可以发送请求的方式，

   var sns = new AWS.SNS();
   var payload = {
      default: 'This is the default message which must be present when publishing a message to a topic. The default message will only be used if a message is not present for 
  one of the notification platforms.',
      APNS: {
        aps: {
          alert: 'The text of the alert message',
          badge: 1,
          sound: 'default'
        }
      }
    };

    // stringify inner json object
    payload.APNS = JSON.stringify(payload.APNS);
    // then stringify the entire message payload
    payload = JSON.stringify(payload);

    sns.publish({
      Message: payload,      // This is Required
      MessageStructure: 'json',
      TargetArn: {{TargetArn}} // This Required
    }, function(err, data) {
      if (err) {
        console.log(err.stack);
        return;
      }
    });
  });

如果您需要支持多个平台，那么根据 AWS 文档，

To send a message to an app installed on devices for multiple platforms, such as FCM and APNS, you must first subscribe the mobile endpoints to a topic in Amazon SNS and then publish the message to the topic.

可以找到 APNS 特定的有效载荷 key APNS Payload Key Reference .

可在此处找到 AWS SNS 文档 Send Custom, Platform-Specific Payloads to Mobile Devices